<!DOCTYPE html>
<html lang="cn">
<head>
    <title>test1.html</title>
</head>
<body>
<form action="Servlet1" method="post">
    username:<label>
    <input type="text" name="username"/>
</label><br>
    password:<label>
    <input type="password" name="password"/>
</label><br>
    <input type="submit" value="submit"/>
</form>
</body>
</html>